Onions are native to Asia (Turkmenistan) and have a history of over 5,000 years. They were introduced to China in the early 20th century and are now cultivated throughout China, primarily in Shandong, Gansu, Inner Mongolia, and Xinjiang. China has become one of the four largest onion-producing countries (along with India, the United States, and Japan).
Introduction: Albania, Algeria, northeastern Argentina, the United States (Arkansas, California, Illinois, Kansas, Kentucky, Louisiana, Minnesota, Montana, Oregon, Vermont, Washington, New York, Wisconsin, etc.), the Baltic States, Bangladesh, Belarus, Bulgaria, Cambodia, the Canary Islands, Russia, China (north-central, south-central, southeastern, Tibet, Xinjiang, etc.), Colombia, Cuba, the Czech Republic, Slovakia, the Dominican Republic, the Eastern Aegean Islands, the Eastern Himalayas, Ecuador, Egypt and, Ethiopia, Fiji, France, Galapagos Islands, Germany, United Kingdom, Guinea-Bissau, Haiti, India, Inner Mongolia, Iraq, Italy, Jamaica, Kyrgyzstan, South Korea, Crimea, Libya, Madeira, Manchuria, Mauritania, Mexico (Central, Gulf of Mexico, Northeast, Southeast, Southwest), Morocco, Pakistan, Puerto Rico, Seychelles, Spain, Tajikistan, Texas, Thailand, Tonga, Trinidad and Tobago, Ukraine, Uzbekistan, Western Himalayas, Western Siberia, Serbia, Croatia, Slovenia.
